Boiler.



B 0 I L E H.

(Application filed May 2, 1900.)

Patented Sept. Il, i900. G. E. LEDVINA.

Bongs.

lxcatxon led May 2, 1900 2 sneis-sneet 2.

i [HfIMlflHJ/m ".l HIM A T'OHN iTnn STaTns PATENT OFFICE.

GEORGE n. LnnviNA, or NEW YORK, N. Y., AssIGNoR or oNnFm'rH 'ro HENRY FISCHER, OF MOUNT VERNON, INDIANA.

BOILER.

SPECIFICATION rer-ming part of Letters ratent No. 657,906, dated september 1 1, 1900.

Appiieenon met Mey 2. 1900. serial ne. 15,204. (No moan.)

To all whom, t may concern:

et. known that I, GEORGE E.LEDv1NA,a citizen of the United States, and a resident of the city of New lYork, (Stapletoin)borough of Richmond, in the county of Richmond and State of New York, have invented a new and Improved Boiler, of which the following is a full, clear, and exact description. l

This invention relates to a boiler adapted especially7 for marine purposes; and the object is to provide a construction which may be readily repaired while the boiler is in use and without necessitating putting out the fires.

This specilication is the disclosure of onev form of my invention, While the claims definethe actual scope thereof.

Reference is to be had to the accompanying drawings,` forming a part of this specification, in which similar characters of reference indicate corresponding parts in both views.

' Figure lisa sectional view of the invention on the line l l in Fig. 2; and Fig. 2 is a sectional View of the invention on the line 2 2 in Fig. l, parts being shown in elevation, asindicated by the arrow on such line in Fig. l.

'lhe boiler has a fire-box A of any suitable form and employing any desired fuel. This fire-box incloses the boiler-tubes Tand a drum R, which forms a steam-reservoir and may be constructed with a steam-dome and other appliances, as will be understood by persons skilled in the art. The tubes T are connected in pairs by elbows t, which pass outside of the walls of the fire-box A and which are provided with cofjkstl for withdrawing the water from the pai'rsof tubes.` In the drawings I have shown eight pairs of Lubes T. These tubes are slidably mounted in the walls of the firehoX and have their front ends projected through the front wall of the lire-box, as shown. The drum Ris also projected through the front of the firebox. Passing from the d ru n1 R is a circulating-pipe c, which extends forwardlyand then turns laterally and downl ward to communicate with two transverselytubes T, and these tubes c2 are provided atpermitting of the withdrawal o f the boilertubes from their operative positions, as will be fully 'described hereinafter. Valves V are arranged in the pipes c', so as to respectively command the tubes c2, and by closing any one of these valves the pipes o may be shut off from the boiler-tube to which said valve is related.

l The upper member of each pair of boilertubes '1 is joined by a right and left hand' threaded union B, with return-tubes C.

. These return-tubes are,like the pipes c', one

for each tier of pairs of boiler-tubes T'. The return-tubes C are of greater capacity than the pipes c', so as to facilitate the passage of the steam therethrough, andthese tubes C communicate with a collector-tube D, which passes back to the drum R to conduct the steam thereto. Valves V are placed in the return-tubes C and respectively command the pairs of boiler-tubes T, sothat hy closing these valves the communication of the boilertubes with the tubes C may be cut off. The feed -water is introduced into the boiler through pipes F, which pass into the lower branch ot' the water-circulating pipe c and respectively project into the4 pipes o. By suitable controlling means thewater-feed may be regulated vaccording to the consumption of the water, as -will be "understood The water passes from the drum R through the pipes c and o' and into the pairs of boilertubes, the Water entering the lower member of' each pair and passing therefrom through the upper member and into the return-tubes C and collector-tube D. 'lhe steam is generated in the tubes T, C, and D and'passes therefrom into the drum R, which constitutes the-steam reservoir. Valves E and G may be placed, respectively, inthe lower parts of the pipes c and D to close the same, and by a suitable arrangement of other valves thc entire circulation in the boiler may ,be1 oon trolled and the boiler may be blown out and manipulated in other respects, as will be understood by persons skilled in the art. Ihave not gone into the details of these features for this reason.

In connection with this construction it is pointed out that each pair of boiler-tubes T forms in itself an independent section of the boiler and that any one of these pairs of boiler-tubes may be readily withdrawn from the boiler without in. any way interfering with'ihe operation of the same or with the generation of steam by the other boiler-tubes. Assuming that in the operationvof the apparatus one of the tubes T should become injured, the engineer has only to close the rvalves V and V', which valves communicate with that pair of tubes T in which the in-` jured tube is included. The cock t', which relates to this pair of boiler-tubes, should now be opened, so as to drain the water therefrom, and then by unscrewng the coupling B the pair of tubes may be' drawn rearward out of the, boiler for repair or other purposes, asdesired. When the valves Vand V are closed, the water and steam pass through the pipesc' and through the pipe c without hindrance of any. sort, and the operation of the boiler goes on the same as before. It is for this reason that my invention is especially adapted for marine purposes, for a complete breakdown in the boiler cannot occur with the construction which I have shown.` The injury of one or two pipes will not materially interfere Patentl. A boiler, having a steam-reservoir, a circulating-pipe passing therefrom, a return' pipe passing thereto, the circulating -andl return pipes having orifices therein, a plurality of independent boiler-'sections removably connected with the circulating and Areturn pipes and respectively communicating with 'the orifices therein, and independently-opertwo subscribing lei-with each other andjhaving orifices therein, independently-operative Valve's com man ding such orifices, and independent boiler-sections each formed of two tubes connected with each other at one end by an elbow, the other endsy 0f the tubes being. in communication Wi th the respective orifices in the circulating and return pipes, and the tubes of said boiler-sections being removably connected with the circulating and return tubes so that theyV may recting the ,feed-water toeach boiler-section,

and independent valves commanding the respective boiler-sections and capable of operfrom 'the boiler,

ation .to-cut bl1 such boiler-sections from the steam-.reservoir and from the feed-water su pply, whereby to permit the'removal of any one of the boiler-sections from the boiler.

4. Aboiler havingasteam-reservoir, antunber of .independent,boiler-sections each independently and removablyv connected with they boiler and .communicating with the steam-` reservoir, and valves commanding the respec tive boiler-sectionsand capable of cutting olf their communications with the steam-reser- 1S Voir, whereby to permitthe removal of any a onel ofthe boiler-sections from the boiler.

5. A boiler, having a steam-reservoir, a circulatiug-pipe passingfrom the same,a return. tube leading to the steam-reservoir, a plurality.ofboiler-sections each having .two portions respectively removably connected with any one of the boiler-sections may be removed from theboiler, and valves working-with the circulating-.pipeand return-tube and movable to :.cut off Athe communications of such tubes with :the boiler-sections, -for the purposespecified.

In testimony whereof I- have signed my name to Vthis specification .in the presence of wit.nesses. g

GEORGE E. LEDVINA. Witnesses:

- I. B. OWENS,

JNo. M. RITTER.

. the circulatingpipe and return-tube so that 

